Action-Qualifier Submodule; Action-Qualifier Submodule Registers - Texas Instruments Concerto F28M36 Series Technical Reference Manual

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ePWM Submodules

Digital Compare

The action-qualifier submodule has the most important role in waveform construction and PWM

generation. It decides which events are converted into various action types, thereby producing the

required switched waveforms at the EPWMxA and EPWMxB outputs.

Purpose of the Action-Qualifier Submodule

The action-qualifier submodule is responsible for the following:

Qualifying and generating actions (set, clear, toggle) based on the following events:

– CTR = PRD: Time-base counter equal to the period (TBCTR = TBPRD).

– CTR = Zero: Time-base counter equal to zero (TBCTR = 0x00)

– CTR = CMPA: Time-base counter equal to the counter-compare A register (TBCTR = CMPA)

– CTR = CMPB: Time-base counter equal to the counter-compare B register (TBCTR = CMPB)

Managing priority when these events occur concurrently

Providing independent control of events when the time-base counter is increasing and when it is

Action-Qualifier Submodule Control and Status Register Definitions

The action-qualifier submodule operation is controlled and monitored via the registers in

Address Offset

C28 Enhanced Pulse Width Modulator (ePWM) Module

Figure 7-18. Action-Qualifier Submodule

Counter Compare

Digital Compare

Table 7-8. Action-Qualifier Submodule Registers

Digital Compare

Action-Qualifier Control Register For Output A (EPWMxA)

Action-Qualifier Control Register For Output B (EPWMxB)

Action-Qualifier Software Force Register

Action-Qualifier Continuous Software Force

Action Qualifier Control Register

Action Qualifier Control Mirror Register For Output A

Action Qualifier Control Mirror Register For Output B

Action Qualifier Software Force Mirror Register

SPRUHE8E – October 2012 – Revised November 2019

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